Windmill power transmission



`5, fl. iGRUMBLEs 2,364,139

yWIIDIVIIL POWER TRANSMISSION Filed Oct. z5, 1943 l 2 Sheets-Sheet .l

Inventor L l fQl//A/ QQQMSLES A Homey;

Dec. 5, 1944.

` l. GRUMBLES WINDMILL POWER TRANSMI SS ION Fled 001:. 5, 1943 2 Sheets-Sheet 2 .null-- 'y Man.

By eau/WW1?.

A itam ey:

` portion of thetubular guide.

" Patented Dec. 5,` 1944 `UNITED STllXTiESv PATENT OFFICE `l ,f 2,364,139V Q i POWER `'rRiiNslmssIoN p IrvinGrumbles, San Saba, Tex. Appiicationoctober 5,1943, seriaiNdsoaom iolaim. (cmi-11o) The present invention relates to new and usep p ful improvements in power transmission par- ,ticularly for windmills, althoughit will be understood that the device may be used in connection with any other type of pumping apparatus for which it may be found adapted and desirable.`

An important object of the invention is to prol vide, in a manner `as hereinafter set forth,; a,

windmill power transmission of the; character described comp-rising a novel constructionand` arrangement for lengthening or increasing and accelerating the stroke of the sucker rod.

Another important object of the invention is to provide a windmill power transmission of the aforementioned character which isadapted to adjust or regulate the stroke of the lsucker rod.

Still another very important object `of the invention is to provide means for equalizing the load on the windmillduring the `upward and downward movements of the sucker rod.

Other objects of the invention are to provide a l windmill power transmission of the character `set forth which willbe comparatively simple in construction, strong, durable, highly ecient and reliable in use, compact, and which may be manufactured and installed atlow cost.

All ofthe foregoing,A and stillfurther objects and advantages ofthe invention, will becomeap- `parent `from `a study of the following specication, taken inconnection with theaccompanying drawings wherein like characters of referf ence designate corresponding parts `throughout the several views, and wherein: i

taken at right angles to Figure 1, showing the lower portion of the tubular guide broken away in section. l f

Figure `3 is a view in horizontal section through r the device, taken substantially on the line 3,-13 of Figure 2.

`Figure 4 is a fragmentary view in cross-section,l showing the mounting of the levers on the `upper Referring now to the drawings in detail, it will be seen that reference character I i designates generally a portion of a windmill tower. `In the windmill is slidable in the bearing 2. A sucker rod 5 is slidable in` the lower bearing 3. Suspended from the lower endo-f the rod 4 is a tubular guide 6; The sucker rod 5 is suspended from the lower end portion of aplunger 'I which is slidably engaged in the lower portion of the `guide 6. Levers 8 are pivotally` mounted,` at intermediate points, for vertical swinging move-` menton the upper portion of the guide 6 on dialmetrically opposite sides thereof.` The` outer end portions of the levers 8 are suspended from the tower I `throughthe medium of chains 9. Spaced openings I in the outer end portions ofI thelevers 8 permitthe chains 9 to be adjustably ccnnected thereto for varying the` stroke of said" levers.` The leversB are `journaled on a bolt Il whichA extends through the guide 6. Angular brackets IZaremounted on the end portions of the bolt `I I, the purpose of which will be presently set forth. i p

l y `Links I 3` operatively connect the levers `8 at their inner ends to the plunger 1.

The l lower end portions of thelinks I3 are connected to the plunger `1 by means 'including a bolt I4 passing throughpsaid plunger. Equalizing springs I5 have one end connected to the brackets I2` and their other 4ends connected to the end portions of the p bolt I 4.` p

It is thought that the operation of the device will be `readily, apparent from a consideration of the foregoing.` Briefly, `when the rod `Il moves downwardly, the levers 8, pivoting at all and swinging on the "chains`9, moveI the plunger 'I downwardly in the guide 6, thereby lowering the sucker rod 5. In this manner the travel of the rod 5 is increased and accelerated relative to the rod 4. The ratio `of movement between the rods p 5 and 4, or, in other words, the stroke ofthe rod 5 may be increased or decreased'as desired by adjusting the chains Sin the openings I 0. When `the plunger 'I moves downwardly, the coil springs p I5 aretensioned. Thns, on the up-stroke the` coil springs I5 assist in elevating the sucker rod 5 for equalizingthe load. l i It is believed that the many advantages of a l windmill power transmission constructed in acl cordance with the present inventionwill be readembodiment sho-wn, the `tower` I has mounted `tion as claimed.

ily understood, and althoughapreferred em- Vbodimentof the device` is as illustrated and de" scribed;` it is to `be `understood that changes in `the details of construction and in the combina-` tion andiarrangement of parts may be resorted to which will fall within the scope of the inveni What is claimed is:

A power transmission comprising a tower, vertically aligned driving and driven rods slidabie in said tower, a tubular guide suspended from the driving rod, a plunger on the driven rod slidable in `said guide, levers pivotally mounted, at an intermediate point, on the guide, chains connected to one end portion of the levers for suspending said levers from the tower for swinging movement, links operatively connecting the levers to the plunger, and springs having one end anchored to the guide and'their other ends connected to the plunger flor yassisting in e1evating the driven rod.

IRVIN GRUMBLES. 

